105645269 has 2 divisors, whose sum is σ = 105645270. Its totient is φ = 105645268.

The previous prime is 105645227. The next prime is 105645277. The reversal of 105645269 is 962546501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87198244 + 18447025 = 9338^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 105645269 - 2²⁰ = 104596693 is a prime.

It is a super-2 number, since 2×105645269² = 22321845724164722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105645299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52822634 + 52822635.

It is an arithmetic number, because the mean of its divisors is an integer number (52822635).

Almost surely, 2^105645269 is an apocalyptic number.

It is an amenable number.

105645269 is a deficient number, since it is larger than the sum of its proper divisors (1).

105645269 is an equidigital number, since it uses as much as digits as its factorization.

105645269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 105645269 is about 10278.3884437202. The cubic root of 105645269 is about 472.7338319860.

The spelling of 105645269 in words is "one hundred five million, six hundred forty-five thousand, two hundred sixty-nine".